Gritomatic Aluminum Oxide Sharpening Stones are used for sharpening knives using KME or Hapstone knife sharpeners. The stones are made of aluminum oxide and are designed for soft or medium steels (up to 59 HRC). All stones are 6 mm thick.
It is advisable to use aluminum oxide stones for sharpening knives made of soft stainless steel: 1095, 1080, 1070, 1050, 420, 440A, 440B, 3Cr13, 8Cr13MoV, 8Cr14MoV, 9Cr14MoV, AUS-4, AUS-6. Using aluminum oxide stones to sharpen knives made of hard steel is not recommended because of low performance.
Gritomatic Aluminum Oxide Stones are preliminarily lapped and does not require lapping after purchase.
Gritomatic Aluminum Oxide Stones are recommended to be used with water as lubricant. Soak the stone for 1-2 minutes and splash water on the stone's surface to prevent drying.
Advantages of aluminum blanks
Stones mounted on aluminum blanks are thicker than stock KME stones. We recommend using the thickness compensator if you use stones of different thickness.
If you have a question regarding this product, please feel free to ask.